Abstract: The present invention relates to a method of searching for information in a database, the method comprising the steps of: presenting at least one item of data to an observer and measuring at least physiological parameter of the observer; and in the presence of a variation in the physiological parameter greater than a predetermined threshold, presenting an item of data having a relationship with the previously-presented data item.

Abstract: The invention relates to a method of determining an identifier of determined discriminating power from biometric data. According to the method, biometric data is obtained relating to an individual. The biometric data is converted into a digital string. A word of an error-correcting code is associated with the individual. The error-correcting code word is added to the digital string. An identifier relating to the individual is determined by applying a hashing function to the error-correcting code word, the hashing function being selected to ensure the determined discriminating power to said identifier.

Abstract: The present invention relates to a method of searching for information in a database, the method comprising the steps of: presenting at least one item of data to an observer and measuring at least physiological parameter of the observer; and in the presence of a variation in the physiological parameter greater than a predetermined threshold, presenting an item of data having a relationship with the previously-presented data item.

Abstract: The invention relates to a method of determining an identifier of determined discriminating power from biometric data. According to the method, biometric data is obtained relating to an individual. The biometric data is converted into a digital string. A word of an error-correcting code is associated with the individual. The error-correcting code word is added to the digital string. An identifier relating to the individual is determined by applying a hashing function to the error-correcting code word, the hashing function being selected to ensure the determined discriminating power to said identifier.

Abstract: A feed apparatus for a fibre layer on an opening roll of cards or spinning preparatory machines fed with the fibre layer, wherein a feeder plate together with a feed roll forms a clearance or gap extending from the entrance or mouth of the feeder plate. Immediately upstream of the feeder plate a presser member is arranged to be movable towards the feed roll into a position in which the fibre layer is compressed and at least to a distance essentially corresponding to the width of the clearance or gap at the entrance or mouth of the feeder plate.